feat: Use OKF for specs and doc

[cduverne]

Problem to solve

The documentation skills aren't using a particular standard for human/AI redability.

Proposed solution

Google released a set of guidelines on how to make documentation Human/AI usable.
https://cloud.google.com/blog/products/data-analytics/how-the-open-knowledge-format-can-improve-data-sharing?hl=en

Could we implement the guidelines in the spec and documentation skills ?

Content type

• Rule
• Skill
• Command
• Agent
• Plugin
• Other

Target tool(s)

• Claude Code
• Cursor
• Windsurf
• Gemini CLI
• Other

Additional context

No response

Code of Conduct

• I agree to follow this project's Code of Conduct.